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52898361957 = 347109855919
BaseRepresentation
bin110001010000111111…
…001111001001100101
312001112120121012210000
4301100333033021211
51331313440040312
640145015251513
73551604441420
oct612077171145
9161476535700
1052898361957
1120485823311
12a303679b99
134cb0388cbc
1427bb63a9b7
15159905dadc
hexc50fcf265

52898361957 has 40 divisors (see below), whose sum is σ = 91138361600. Its totient is φ = 29950282656.

The previous prime is 52898361911. The next prime is 52898361959. The reversal of 52898361957 is 75916389825.

52898361957 is a `hidden beast` number, since 5 + 2 + 8 + 9 + 8 + 3 + 619 + 5 + 7 = 666.

It is not a de Polignac number, because 52898361957 - 27 = 52898361829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52898361894 and 52898361903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52898361959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 366157 + ... + 489762.

It is an arithmetic number, because the mean of its divisors is an integer number (2278459040).

Almost surely, 252898361957 is an apocalyptic number.

It is an amenable number.

52898361957 is a deficient number, since it is larger than the sum of its proper divisors (38239999643).

52898361957 is a wasteful number, since it uses less digits than its factorization.

52898361957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856047 (or 856038 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 63.

The spelling of 52898361957 in words is "fifty-two billion, eight hundred ninety-eight million, three hundred sixty-one thousand, nine hundred fifty-seven".

Divisors: 1 3 7 9 21 27 63 81 109 189 327 567 763 981 2289 2943 6867 8829 20601 61803 855919 2567757 5991433 7703271 17974299 23109813 53922897 69329439 93295171 161768691 279885513 485306073 653066197 839656539 1959198591 2518969617 5877595773 7556908851 17632787319 52898361957